Silicon is the most easily available semiconductor metal which is present in large amount in rocks and minerals. Silicon is also the basic component of sand and sand is the basic component of almost every rocks and impure minerals.
Processes in the carbon cycle. ... Carbon enters the atmosphere as carbon dioxide from respiration and combustion. Carbon dioxide is absorbed by producers to make glucose in photosynthesis. Animals feed on the plant passing the carbon compounds along the food chain.
A. Eukaryotes
b. Cell Membrane
c. Meristem?
d. Phloem?
e. Neurons
I hope this helped at least some. I wasn’t sure for some problems but I tried :)